(19)
(11) EP 0 460 582 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.12.1992 Bulletin 1992/52

(43) Date of publication A2:
11.12.1991 Bulletin 1991/50

(21) Application number: 91109058.7

(22) Date of filing: 03.06.1991
(51) International Patent Classification (IPC)5B62D 5/04, B62D 15/02
(84) Designated Contracting States:
DE FR IT

(30) Priority: 04.06.1990 JP 146417/90

(71) Applicant: NIPPONDENSO CO., LTD.
Kariya-shi Aichi-ken (JP)

(72) Inventors:
  • Hirano, Hiroyuki
    Kariya-shi, Aichi-ken (JP)
  • Tsuzuki, Yoshihiko
    Toyota-shi, Aichi-ken (JP)
  • Haseda, Satoshi
    Okazaki-shi, Aichi-ken (JP)
  • Fukushima, Akira
    Kariya-shi, Aichi-ken (JP)
  • Inoue, Hideo
    Ashigarakami-gun, Kanagawa-ken (JP)
  • Takeda, Osamu
    Susono-shi, Shizuoka-ken (JP)

(74) Representative: KUHNEN, WACKER & PARTNER 
Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)


(56) References cited: : 
   
       


    (54) Steering angle detecting apparatus for motor vehicles


    (57) A steering angle detecting apparatus for accurately and surely detecting a steering angle of a motor vehicle. The apparatus is equipped with a turning angle detector for detecting a turning angle of a steering wheel of the motor vehicle. In addition, the apparatus estimates a turning angle of the steering wheel on the basis of the difference in speed between left and right wheels of the motor vehicle so as to calculate the difference in phase between the detection turning angle and the estimation turning angle. For detecting the accurate vehicle steering angle, the detection turning angle is corrected on the basis of the calculated phase difference therebetween.







    Search report